First version of the Virtual Media Controller.
Add a simple version of the core of the driver, the capture and
sensor nodes in the topology, generating a grey image in a hardcoded
format.
Signed-off-by: NHelen Koike <helen.koike@collabora.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix small typo in Kconfig]
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>